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C To check that the derailleur works correctly on all chainrings and sprockets,
ride the bike with the derailleur and derailleur controls to ensure that the derail-
leur works properly. If in any gear the chain falls towards the bottom bracket,
adjust screw 5 in gure 5 by turning the adjusting screw 1/4 turn clockwise.
D If the chain falls off the chainring when shifting to the smallest sprocket,
adjust screw 4 in gure 4 by turning the screw 1/4 turn clockwise. When
shifting to intermediate positions, if you notice that the derailleur is noisy or
the chain does not shift smoothly from one chainring to the other, adjust the
tension adjuster on the left handlebar knob to get a perfect t.
E Rear derailleur adjustment: it has two adjustment screws, the process to
follow is very similar to that of the front derailleur.
1 Position the upper roller of the gearbox on the same line as the
smallest pinion using the adjustment screw 4 in gure 4.
2 Position the upper roller of the derailleur on the same line as the
largest sprocket using the adjusting screw 5 in gure 5..
3 When riding the bike, check that the chain engages properly on all
sprockets by pressing the derailleur controls on the right side of the handle-
bars. If in the intermediate positions the chain is noisy or does not shift cor-
rectly, adjust the adjuster on the right-hand derailleur shifter until you get a
perfect t.
Figure 4 Figure 5
4 5
4 5
Upper gear roller
alignment
Upper gear roller
alignment
Regulating screw of
the inner stop
5
Its location depends on
the model of the gear
Regulating screw of
the outer stop 4
Its location depends on
the model of the gear
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